Improvement in coal-oil burners



S. FREDERICK Coal Oil Burner.

No. 38,223. Patented April 21, 1863..

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SOLOMON FREDRIOK,

on NEW YORK, n. Y.

Specification forming part of Letters Patent No. 38,223, dated April 21, 1863.

To all whom it may concern:

Be it known that I, SoLoMoN FREDRICK, of the city, county, and State of New York, have invented a new and useful Improvement in Goal-Oil Burners for the Lamps ofLanterns and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to 'the accompanying drawings, making a part of this specification, in which- Figures 1 and 2 areside elevations of my invention Fig. 3, a vertical central section of the same, taken in the line 00 m, Fig. 4 5 Fig. 4, a plan or top View of the same. i

Similar letters of reference'indioate corresponding parts in the several figures.

This invention relates to an improvement in coal-oil burners for lanterns, whereby the flame is prevented from being extinguished by the swinging of the lantern or sudden movements of the same-a contingency of frequent occurrence in using coal-oil as a burning maright angles to the longitudinal lines of the V wick.

To enable those skilled in the art to fully understand and construct my invention, 1 will proceed to describe it.

A represents the body or fountain of a lantern-lamp, and B the burner, which is screwed into its top. The burner is composed simply of a cap, a. which is screwed into a socket fitted in the top of the lamp, as usual, and a wick-tube, I). which may be of the ordinary flat kind, the wick-tube being secured vertically and centrally in the cap a. The wick-tube b and cap a are constructed of brass, that being the material generally used for such purpose.

O is a tube constructed in the same form as the wick-tube b, but of rather larger dimensions, so that it may fit on the tube 1). This tube 0 is constructed of iron, and to its upper end there is attached a top, D, constructed also of iron and of such a shape as to form a chamber to encompass the lower part of the flame. The top D may be constructed of a single piece of sheet-metal bent or swaged so as to form two upri ht plates, 0 0, of semielliptical form, and which are directly opposite each other. These plates 0 c are bent outward at their center, so as to form concaves d d at their inner surfaces, and leave a narrow slit or opening, 6, at each side, (see Figs. 2 and 4,) and the bottom of the top D at each side of the tube 0 is perforated with a hole, f, as shown in Figs. 1 and 4. The top D is applied to the tube 0 in such a manner that the top of the wick-tube b and the tube O, which encompasses it, will be in line with the slits or openings e e at each side of the top D. Owingto this adjustment of the top 1) on the tube 0, and to the shape of the top, the flame has a peculiar form, it gradually expanding laterally or at right angles to the major diameter of the tube 0, as shown by dotted lines in Fig. 4. The holes ff in the bottom of the top D admit of the air passing into the top to the flame, and in consequence of the spreading of the flame as described a large surface of the latter is presented to the air, so that the flame will be supplied with the requisite amount of oxygen to support proper combustion. The iron tube 0 keeps the brass wick-tube b in a cool state, as it is not so good a conductor of heat, and the oil in the fountain or body A will therefore not be heated and vaporized, as would otherwise be the case. The burner does not require a chimney, as the glass globe of the lantern performs that function.

This invention has been practically tested, and has been found to operate well. The flame is not liable to be extinguished by the swinging of the lantern or sudden movements ofthe same.

I do not claim, broadly or separately, a chamber applied to a wicktube so as to encompass the flame, for such device has been previously used; but

I do claim as new and desire to secure by Letters Patent, as an improved article of man ufacture-- The top D, when made in the peculiar form and manner herein shown and described, and

Witnesses:

M. S. PARTRIDGE, DANIEL ROBERTSON. 

